North Tower Half-Way Through Destruction

Nearly Simultaneous Shots of the North Tower
From Different Vantagepoints

Both of these photographs were taken about 8.5 seconds into
the destruction of the North Tower.
The photograph on the left was taken about from the northeast
and the photograph on the right was taken from the north.
Close examination reveals that features in the
rapidly evolving dust cloud are remarkably similar,
meaning the photos must have been
taken very close to the same time,
certainly within a fraction of a second.
Comparing features is tricky because of the different vantage points.
Some that are easy to compare are:
the shape of the end of the leftmost dust flow;
the split tube shaped dust flow near the right side of the facing wall
in the smaller photo and further left in the larger photo; and
details in the the leftward facing plume rising above the main dust flows
resembling a dragon head.

The photo on the left is from the book Painful Questions,
which has a number of other high-resolution photos of the collapses.

Given the similarity of features
these two images could be used to reconstruct a three-dimensional
model of the event.